Transaction

[Error Code: 1101] cadence runtime error Execution failed:
error: underflow
  --> b45fc189526c1debd60eacc4f1d3c67cdac8eaeb9f86af759b6a44ddbf83a797:13:8
   |
13 |         let f1 = fee * I1B2sqr / scale * I2B1sqr / scale - I1B2;
   |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^